As I mentioned in an earlier post, I bought what used to be a mobile. The strings were so old that they broke with the slightest weight so it would need to be re-strung.
The key is to get the axis string just right the slightest micro millimeter will throw off the balance.
The finished product hanging in a window corner of my bedroom. It has been there for a few days now I find it relaxing and meditative. Definitely a fan of mobiles now.